Simon Cowell on Christina Aguilera

Who are some of your favorite entertainers of the last decade?

As an actor, I really like Philip Seymour Hoffman. I think he’s a genius. Music-wise, certainly in the last year I love Lady Gaga. Mainly because she’s made pop music fun again. I love Christina Aguilera, I think she’s incredible. And Beyoncé is the biggest star we’ve seen in 20 years. And I was very negative about her once—far, far too early on in her career.

Source: EW.com